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Chromosomes
Chromosomes contain the genetic material DNA
1,309 Questions
How are the genes lined up in a pair of chromosomes?
Genes are located along the length of chromosomes, which are organized into pairs in most cells. Each chromosome pair contains genes at specific locations called loci. The order of genes along a chromosome is known as the gene sequence.
Where does an organism receive its chromosomes from?
An organisms gets its chromosomes from its parent(s).
A girl last set of chromosomes is?
A human female has exactly the same number of chromosomes as a human male. In humans, each cell normally contains 23 pairs of chromosomes, for a total of 46.
However, the 23rd pair, the sex chromosomes, differ between males and females. Females have two of the "X" version of this chromosome, while the male has an "X" version and a "Y" version.
The normal species chromosome number is called the what number?
During cell division the parent cell splits to form what 2 cells
When cell chromosome become visible what are the duplicate strands of DNA called?
Daughter Chromosomes
Assuming the two are both normal, no. A difference in the number of chromosomes is generally associated with severe birth defects. Most such children will not even make it to birth alive. The most common chromosome anomaly in humans is Down Syndrome, which is comparatively mild in that it doesn't automatically result in the death of the fetus before or shortly after birth.(I'm assuming you mean "number of chromosomes per cell"; an 18 year old will have more chromosomes in total than an 8 month old simply by virtue of being larger and having more cells.)
What do chromosomes do for a cell?
A chromosome is an organized structure of DNAand Proteinthat is found in Cell_(biology).Itis a single piece of coiled DNA containing many Gene, Regulatory_sequenceand other Genetic_sequence. Chromosomes also contain DNA-bound proteins, which serve to package the DNA and control its functions.
A chromosome is a DNA strand, that is comprised of genes. The two sex chromosomes are XX in females and XY in males.
What action occurs during meiosis exchanging pieces of chromosomes between homologous chromosomes?
The action that occurs during meiosis that involves exchanging pieces of chromosomes between homologous chromosomes is called crossing over. This leads to genetic variation among offspring by creating new combinations of genes.
How is protein organized in a chromosome?
Chromosomes are mostly DNA not proteins, but there are small proteins that "package" and protect the DNA. These proteins are somewhat different in prokaryotes and eukaryotes:
- Prokaryotes do not possess nuclei. Instead, their DNA is organized into a structure called the nucleoid. This structure is, however, dynamic and is maintained and remodeled by the actions of a range of histone-like proteins, which associate with the bacterial chromosome. In archaea, the DNA in chromosomes is even more organized, with the DNA packaged within structures similar to eukaryotic nucleosomes.
- In the nuclear chromosomes of eukaryotes, the uncondensed DNA exists in a semi-ordered structure, where it is wrapped around histones (structural proteins), forming a composite material called chromatin.
What abnormality has Philadelphia chromosome possess?
The Philadelphia chromosome abnormality is that chromosome 9 and 22 have swapped places. This abnormality causes a higher susceptibility to forms of leukemia. Specificly it is connected most commonly to chronic myelogenous leukemia.
2^n possible combinations
What is a non example of chromosome?
An example could be mitochondria, because 1. Its not a chromosome and 2. It doesn't carry chromosomes.
What is the chromosome pair for a boy?
A boy has one X chromosome from the mother and one Y chromosome from the father, making his chromosome pair for gender determination XY.
What happens to the chromosomes number by the end of meiosis?
The chromosome number at the end of meiosis is half of the parent cell
How many chromosomes does an ape have?
There are 21 in one cell. Find how many cells they have and multiply
What are the parts of a chromosome that control inherited traits?
The parts of a chromosome that control inherited traits is referred to as genes. There are many types of inherited traits, some visible while the others are invisible,
What type of sex chromosome will be contained by the sex cells of a female giraffe?
X chromosome only
What indicates the number of copies of the basic number of chromosomes?
The term ploidy indicates the number of complete sets of chromosomes in a cell. This can be haploid (one set of chromosomes), diploid (two sets), triploid (three sets), and so on. For example, humans are typically diploid, with two sets of 23 chromosomes each.
